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MX-7500N  MX-RB12 (PAPER PASS UNIT)  14 – 2

3) Install the paper guide (Packed items No.7), and fix the screw

(Packed items No.3).

4) Engage the accuride rail (Packed items No.6) to cut-out por-

tion of main frame. 
Install the accuride rail while pressing so that engage the pro-
jection of the main unit frame with the hole in rear side of the
accuride rail. Fix the accuride rail with the screw (Packed items
No.1).

1) Insert the rib of the left cabinet (Packed items No.10) into the

slit on the lower surface of the upper cabinet left. Fix the left
cabinet with the screw (Packed items No.1).

1) Pull out the slide rails.

2)

Place the paper pass unit on the slide rails, and fix it with the
screw (Packed items No.1). 
Push the paper pass unit into the main unit to install.

3)

Insert the front cover (Packed items No.9) to the supporting
point, and fix it with a E-ring (Packed items No.4).

4)

Install the band (Packed items No.12), and fix the screw
(Packed items No.2) to the front cover.

1)

Install the toner bottle, and close the front cover.

MX-7500N  MX-RB15 (CURL CORRECTION UNIT)  15 – 1

MX-7500N

Service Manual

 

NOTE: When moving the unit, use manpower of two or more per-

sons.

1) Remove fixing tape and fixing bracket from the decurler unit.

1

Screw 

(M3 x 6 RS tight)

10

10

10

4

4

6

2

Screw 

(M4 x 8 RS tight)

2

---

---

2

2

2

3

Screw 

(M4 x 7 Round tup)

2

2

2

2

2

2

4

Screw 

(M4 x 12 Bind)

4

4

4

4

4

4

5

M4 step screw

2

2

2

2

2

2

6

Connection plate F

1

1

1

1

1

1

7

Connection plate R

1

1

1

1

1

1

8

Earth bracket

1

1

---

1

1

1

9

Shunt cable 

connection plate

1

---

---

1

1

1

10

Rear upper cover

1

1

1

1

1

1

11

Paper guide A

1

---

1

1

1

1

12

Paper guide B

1

1

---

---

---

---

13

Paper guide C

1

1

1

---

---

---

14

Protection sheet

1

1

1

---

---

1

15

Top surface 

cushion

1

1

1

1

1

1

1

2

3

4

5

6

7

8

9

10

14

15

13

11

12

Cushion attachment 
position

Reference of cushion on.
(Rear screw hole tiered edge)

Reference of cushion on.
(Upper cabinet lower edge)

MX-7500N  MX-RB15 (CURL CORRECTION UNIT)  15 – 2

NOTE: Installation must be executed in the sequence of the com-

plex machine body, the paper feed option, and the paper

exit option.

NOTE: Before installation, be sure to turn both the operation and

main  power  switches  off  and  disconnect  the  power  plug

from the power outlet. Make double sure that the data lamp

on the operation panel does not light up or blink when per-

forming installation.

NOTE: To  prevent  against  falling  during  installation,  extend  the

stand rail.

1) Attach the connection plates F/R (Packed items No.6, 7) and

fix them with the screws (Packed items No.4).

1) Fix the shunt cable connection plate (Packed items No.9) with

the screws (Packed items No.2).

1) Attach  the  rear  upper  cover  (Packed  items  No.10)  and  fix  it

with the screw (Packed items No.3).

1) Fix  the  earth  bracket  (Packed  items  No.8)  with  the  screws

(Packed items No.1).

NOTE: Use the outside screw holes for fixing.

1) Return the stand rail to the original position.
2) Connect the unit to the machine. 

Insert the pin in the machine side into the hole in the R side of

the unit.

 

 

 

 

 

 

MX-7500N  MX-RB15 (CURL CORRECTION UNIT)  15 – 3

NOTE: When  the  adjuster  bolt  is  turned  counterclockwise,  the

height is decreased. When turned clockwise, the height is

increased.

NOTE: For  the  height and  tilt  adjustment,  use  the  three adjuster

bolts under the unit.

Turn the adjustment nuts of the casters with a wrench in the arrow

direction to adjust the height. (When turning the adjustment nut one

rotation, the height of the curl correction unit is changed by about

1.75mm.)
? To  increase  the  curl  correction  unit  height,  turn  the  nut  in  the

direction [A].

? To  decrease  the  curl  correction  unit  height,  turn  the  nut  in  the

direction [B].

NOTE: Use the wrench attached to the finisher.

1) Use adjuster bolt (1) to adjust the height so that the center of

the hole for the unit fixing screw in the F side is aligned with

the center marking-off line. 

2) Use adjuster bolt (2) to adjust the height so that the center of

the hole for the unit fixing screw in the R side is aligned with

the center marking-off line. 

3) Use  adjuster  bolt  (3)  so  that  the  clearance  between  the

machine and the unit becomes uniform.

1) Fix  the  unit  to  the  machine  with  the  step  screws  (Packed

items).

1) Connect the three connectors of the unit to the machine, and

fix with the screws.

 

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